<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form th:action="@{/c}" method="post">
    姓名:<input type="text" name="name">
    性别:<input type="text" name="xb">
    年龄:<input type="text" name="age">
    <input type="submit" value="提交">
</form>

</body>
</html>